/*
 * Copyright 2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
package org.spicefactory.lib.util {

/**
 * Simple utility that can be used where a value can have three states: undefined, true and false.
 * For a property of type Flag it can be set to null for the first state and concrete instances
 * can represent the remaining 2 states. 
 * 
 * @author Jens Halm
 */
public class Flag {
	
	
	private var _value:Boolean;

	/**
	 * Creates a new instance.
	 * 
	 * @param value the value of the flag
	 */
	public function Flag (value:Boolean) {
		_value = value;
	}
	
	/**
	 * The value of this flag.
	 */
	public function get value () : Boolean {
		return _value;
	}
	
}

}